scsi_cd.c revision 45845
1/* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $Id: scsi_cd.c,v 1.16 1999/04/07 22:57:54 gibbs Exp $ 28 */ 29/* 30 * Portions of this driver taken from the original FreeBSD cd driver. 31 * Written by Julian Elischer (julian@tfs.com) 32 * for TRW Financial Systems for use under the MACH(2.5) operating system. 33 * 34 * TRW Financial Systems, in accordance with their agreement with Carnegie 35 * Mellon University, makes this software available to CMU to distribute 36 * or use in any manner that they see fit as long as this message is kept with 37 * the software. For this reason TFS also grants any other persons or 38 * organisations permission to use or modify this software. 39 * 40 * TFS supplies this software to be publicly redistributed 41 * on the understanding that TFS is not responsible for the correct 42 * functioning of this software in any circumstances. 43 * 44 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 45 * 46 * from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $ 47 */ 48 49#include "opt_cd.h" 50 51#include <sys/param.h> 52#include <sys/systm.h> 53#include <sys/kernel.h> 54#include <sys/buf.h> 55#include <sys/dkbad.h> 56#include <sys/disklabel.h> 57#include <sys/diskslice.h> 58#include <sys/malloc.h> 59#include <sys/conf.h> 60#include <sys/cdio.h> 61#include <sys/devicestat.h> 62#include <sys/sysctl.h> 63 64#include <cam/cam.h> 65#include <cam/cam_ccb.h> 66#include <cam/cam_extend.h> 67#include <cam/cam_periph.h> 68#include <cam/cam_xpt_periph.h> 69#include <cam/cam_queue.h> 70 71#include <cam/scsi/scsi_message.h> 72#include <cam/scsi/scsi_da.h> 73#include <cam/scsi/scsi_cd.h> 74 75#define LEADOUT 0xaa /* leadout toc entry */ 76 77struct cd_params { 78 u_int32_t blksize; 79 u_long disksize; 80}; 81 82typedef enum { 83 CD_Q_NONE = 0x00, 84 CD_Q_NO_TOUCH = 0x01, 85 CD_Q_BCD_TRACKS = 0x02, 86 CD_Q_NO_CHANGER = 0x04, 87 CD_Q_CHANGER = 0x08 88} cd_quirks; 89 90typedef enum { 91 CD_FLAG_INVALID = 0x001, 92 CD_FLAG_NEW_DISC = 0x002, 93 CD_FLAG_DISC_LOCKED = 0x004, 94 CD_FLAG_DISC_REMOVABLE = 0x008, 95 CD_FLAG_TAGGED_QUEUING = 0x010, 96 CD_FLAG_OPEN = 0x020, 97 CD_FLAG_CHANGER = 0x040, 98 CD_FLAG_ACTIVE = 0x080, 99 CD_FLAG_SCHED_ON_COMP = 0x100, 100 CD_FLAG_RETRY_UA = 0x200 101} cd_flags; 102 103typedef enum { 104 CD_CCB_PROBE = 0x01, 105 CD_CCB_BUFFER_IO = 0x02, 106 CD_CCB_WAITING = 0x03, 107 CD_CCB_TYPE_MASK = 0x0F, 108 CD_CCB_RETRY_UA = 0x10 109} cd_ccb_state; 110 111typedef enum { 112 CHANGER_TIMEOUT_SCHED = 0x01, 113 CHANGER_SHORT_TMOUT_SCHED = 0x02, 114 CHANGER_MANUAL_CALL = 0x04, 115 CHANGER_NEED_TIMEOUT = 0x08 116} cd_changer_flags; 117 118#define ccb_state ppriv_field0 119#define ccb_bp ppriv_ptr1 120 121typedef enum { 122 CD_STATE_PROBE, 123 CD_STATE_NORMAL 124} cd_state; 125 126struct cd_softc { 127 cam_pinfo pinfo; 128 cd_state state; 129 cd_flags flags; 130 struct buf_queue_head buf_queue; 131 LIST_HEAD(, ccb_hdr) pending_ccbs; 132 struct cd_params params; 133 struct diskslices *cd_slices; 134 union ccb saved_ccb; 135 cd_quirks quirks; 136 struct devstat device_stats; 137 STAILQ_ENTRY(cd_softc) changer_links; 138 struct cdchanger *changer; 139 int bufs_left; 140 struct cam_periph *periph; 141}; 142 143struct cd_quirk_entry { 144 struct scsi_inquiry_pattern inq_pat; 145 cd_quirks quirks; 146}; 147 148/* 149 * These quirk entries aren't strictly necessary. Basically, what they do 150 * is tell cdregister() up front that a device is a changer. Otherwise, it 151 * will figure that fact out once it sees a LUN on the device that is 152 * greater than 0. If it is known up front that a device is a changer, all 153 * I/O to the device will go through the changer scheduling routines, as 154 * opposed to the "normal" CD code. 155 */ 156static struct cd_quirk_entry cd_quirk_table[] = 157{ 158 { 159 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"}, 160 /*quirks*/ CD_Q_CHANGER 161 }, 162 { 163 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM-604X", 164 "*"}, /* quirks */ CD_Q_CHANGER 165 }, 166 { 167 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"}, 168 /* quirks */ CD_Q_BCD_TRACKS 169 } 170}; 171 172#ifndef MIN 173#define MIN(x,y) ((x<y) ? x : y) 174#endif 175 176#define CD_CDEV_MAJOR 15 177#define CD_BDEV_MAJOR 6 178 179static d_open_t cdopen; 180static d_read_t cdread; 181static d_close_t cdclose; 182static d_ioctl_t cdioctl; 183static d_strategy_t cdstrategy; 184static d_strategy_t cdstrategy1; 185 186static periph_init_t cdinit; 187static periph_ctor_t cdregister; 188static periph_dtor_t cdcleanup; 189static periph_start_t cdstart; 190static periph_oninv_t cdoninvalidate; 191static void cdasync(void *callback_arg, u_int32_t code, 192 struct cam_path *path, void *arg); 193static void cdshorttimeout(void *arg); 194static void cdschedule(struct cam_periph *periph, int priority); 195static void cdrunchangerqueue(void *arg); 196static void cdchangerschedule(struct cd_softc *softc); 197static int cdrunccb(union ccb *ccb, 198 int (*error_routine)(union ccb *ccb, 199 u_int32_t cam_flags, 200 u_int32_t sense_flags), 201 u_int32_t cam_flags, u_int32_t sense_flags); 202static union ccb *cdgetccb(struct cam_periph *periph, 203 u_int32_t priority); 204static void cddone(struct cam_periph *periph, 205 union ccb *start_ccb); 206static int cderror(union ccb *ccb, u_int32_t cam_flags, 207 u_int32_t sense_flags); 208static void cdprevent(struct cam_periph *periph, int action); 209static int cdsize(dev_t dev, u_int32_t *size); 210static int cdreadtoc(struct cam_periph *periph, u_int32_t mode, 211 u_int32_t start, struct cd_toc_entry *data, 212 u_int32_t len); 213static int cdgetmode(struct cam_periph *periph, 214 struct cd_mode_data *data, u_int32_t page); 215static int cdsetmode(struct cam_periph *periph, 216 struct cd_mode_data *data); 217static int cdplay(struct cam_periph *periph, u_int32_t blk, 218 u_int32_t len); 219static int cdreadsubchannel(struct cam_periph *periph, 220 u_int32_t mode, u_int32_t format, 221 int track, 222 struct cd_sub_channel_info *data, 223 u_int32_t len); 224static int cdplaymsf(struct cam_periph *periph, u_int32_t startm, 225 u_int32_t starts, u_int32_t startf, 226 u_int32_t endm, u_int32_t ends, 227 u_int32_t endf); 228static int cdplaytracks(struct cam_periph *periph, 229 u_int32_t strack, u_int32_t sindex, 230 u_int32_t etrack, u_int32_t eindex); 231static int cdpause(struct cam_periph *periph, u_int32_t go); 232static int cdstopunit(struct cam_periph *periph, u_int32_t eject); 233static int cdstartunit(struct cam_periph *periph); 234 235static struct periph_driver cddriver = 236{ 237 cdinit, "cd", 238 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0 239}; 240 241DATA_SET(periphdriver_set, cddriver); 242 243/* For 2.2-stable support */ 244#ifndef D_DISK 245#define D_DISK 0 246#endif 247static struct cdevsw cd_cdevsw = 248{ 249 /*d_open*/ cdopen, 250 /*d_close*/ cdclose, 251 /*d_read*/ cdread, 252 /*d_write*/ nowrite, 253 /*d_ioctl*/ cdioctl, 254 /*d_stop*/ nostop, 255 /*d_reset*/ noreset, 256 /*d_devtotty*/ nodevtotty, 257 /*d_poll*/ seltrue, 258 /*d_mmap*/ nommap, 259 /*d_strategy*/ cdstrategy, 260 /*d_name*/ "cd", 261 /*d_spare*/ NULL, 262 /*d_maj*/ -1, 263 /*d_dump*/ nodump, 264 /*d_psize*/ nopsize, 265 /*d_flags*/ D_DISK, 266 /*d_maxio*/ 0, 267 /*b_maj*/ -1 268}; 269 270static struct extend_array *cdperiphs; 271static int num_changers; 272 273#ifndef CHANGER_MIN_BUSY_SECONDS 274#define CHANGER_MIN_BUSY_SECONDS 2 275#endif 276#ifndef CHANGER_MAX_BUSY_SECONDS 277#define CHANGER_MAX_BUSY_SECONDS 10 278#endif 279 280static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; 281static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; 282 283/* 284 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl 285 * variables. 286 */ 287SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 288SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); 289SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); 290SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, 291 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); 292SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW, 293 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum"); 294 295struct cdchanger { 296 path_id_t path_id; 297 target_id_t target_id; 298 int num_devices; 299 struct camq devq; 300 struct timeval start_time; 301 struct cd_softc *cur_device; 302 struct callout_handle short_handle; 303 struct callout_handle long_handle; 304 cd_changer_flags flags; 305 STAILQ_ENTRY(cdchanger) changer_links; 306 STAILQ_HEAD(chdevlist, cd_softc) chluns; 307}; 308 309static STAILQ_HEAD(changerlist, cdchanger) changerq; 310 311void 312cdinit(void) 313{ 314 cam_status status; 315 struct cam_path *path; 316 317 /* 318 * Create our extend array for storing the devices we attach to. 319 */ 320 cdperiphs = cam_extend_new(); 321 if (cdperiphs == NULL) { 322 printf("cd: Failed to alloc extend array!\n"); 323 return; 324 } 325 326 /* 327 * Install a global async callback. This callback will 328 * receive async callbacks like "new device found". 329 */ 330 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 331 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 332 333 if (status == CAM_REQ_CMP) { 334 struct ccb_setasync csa; 335 336 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 337 csa.ccb_h.func_code = XPT_SASYNC_CB; 338 csa.event_enable = AC_FOUND_DEVICE; 339 csa.callback = cdasync; 340 csa.callback_arg = NULL; 341 xpt_action((union ccb *)&csa); 342 status = csa.ccb_h.status; 343 xpt_free_path(path); 344 } 345 346 if (status != CAM_REQ_CMP) { 347 printf("cd: Failed to attach master async callback " 348 "due to status 0x%x!\n", status); 349 } else { 350 /* If we were successfull, register our devsw */ 351 cdevsw_add_generic(CD_BDEV_MAJOR, CD_CDEV_MAJOR, &cd_cdevsw); 352 } 353} 354 355static void 356cdoninvalidate(struct cam_periph *periph) 357{ 358 int s; 359 struct cd_softc *softc; 360 struct buf *q_bp; 361 struct ccb_setasync csa; 362 363 softc = (struct cd_softc *)periph->softc; 364 365 /* 366 * De-register any async callbacks. 367 */ 368 xpt_setup_ccb(&csa.ccb_h, periph->path, 369 /* priority */ 5); 370 csa.ccb_h.func_code = XPT_SASYNC_CB; 371 csa.event_enable = 0; 372 csa.callback = cdasync; 373 csa.callback_arg = periph; 374 xpt_action((union ccb *)&csa); 375 376 softc->flags |= CD_FLAG_INVALID; 377 378 /* 379 * Although the oninvalidate() routines are always called at 380 * splsoftcam, we need to be at splbio() here to keep the buffer 381 * queue from being modified while we traverse it. 382 */ 383 s = splbio(); 384 385 /* 386 * Return all queued I/O with ENXIO. 387 * XXX Handle any transactions queued to the card 388 * with XPT_ABORT_CCB. 389 */ 390 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 391 bufq_remove(&softc->buf_queue, q_bp); 392 q_bp->b_resid = q_bp->b_bcount; 393 q_bp->b_error = ENXIO; 394 q_bp->b_flags |= B_ERROR; 395 biodone(q_bp); 396 } 397 splx(s); 398 399 /* 400 * If this device is part of a changer, and it was scheduled 401 * to run, remove it from the run queue since we just nuked 402 * all of its scheduled I/O. 403 */ 404 if ((softc->flags & CD_FLAG_CHANGER) 405 && (softc->pinfo.index != CAM_UNQUEUED_INDEX)) 406 camq_remove(&softc->changer->devq, softc->pinfo.index); 407 408 xpt_print_path(periph->path); 409 printf("lost device\n"); 410} 411 412static void 413cdcleanup(struct cam_periph *periph) 414{ 415 struct cd_softc *softc; 416 int s; 417 418 softc = (struct cd_softc *)periph->softc; 419 420 xpt_print_path(periph->path); 421 printf("removing device entry\n"); 422 423 s = splsoftcam(); 424 /* 425 * In the queued, non-active case, the device in question 426 * has already been removed from the changer run queue. Since this 427 * device is active, we need to de-activate it, and schedule 428 * another device to run. (if there is another one to run) 429 */ 430 if ((softc->flags & CD_FLAG_CHANGER) 431 && (softc->flags & CD_FLAG_ACTIVE)) { 432 433 /* 434 * The purpose of the short timeout is soley to determine 435 * whether the current device has finished or not. Well, 436 * since we're removing the active device, we know that it 437 * is finished. So, get rid of the short timeout. 438 * Otherwise, if we're in the time period before the short 439 * timeout fires, and there are no other devices in the 440 * queue to run, there won't be any other device put in the 441 * active slot. i.e., when we call cdrunchangerqueue() 442 * below, it won't do anything. Then, when the short 443 * timeout fires, it'll look at the "current device", which 444 * we are free below, and possibly panic the kernel on a 445 * bogus pointer reference. 446 * 447 * The long timeout doesn't really matter, since we 448 * decrement the qfrozen_cnt to indicate that there is 449 * nothing in the active slot now. Therefore, there won't 450 * be any bogus pointer references there. 451 */ 452 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 453 untimeout(cdshorttimeout, softc->changer, 454 softc->changer->short_handle); 455 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 456 } 457 softc->changer->devq.qfrozen_cnt--; 458 softc->changer->flags |= CHANGER_MANUAL_CALL; 459 cdrunchangerqueue(softc->changer); 460 } 461 462 /* 463 * If we're removing the last device on the changer, go ahead and 464 * remove the changer device structure. 465 */ 466 if ((softc->flags & CD_FLAG_CHANGER) 467 && (--softc->changer->num_devices == 0)) { 468 469 /* 470 * Theoretically, there shouldn't be any timeouts left, but 471 * I'm not completely sure that that will be the case. So, 472 * it won't hurt to check and see if there are any left. 473 */ 474 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) { 475 untimeout(cdrunchangerqueue, softc->changer, 476 softc->changer->long_handle); 477 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED; 478 } 479 480 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 481 untimeout(cdshorttimeout, softc->changer, 482 softc->changer->short_handle); 483 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 484 } 485 486 STAILQ_REMOVE(&changerq, softc->changer, cdchanger, 487 changer_links); 488 xpt_print_path(periph->path); 489 printf("removing changer entry\n"); 490 free(softc->changer, M_DEVBUF); 491 num_changers--; 492 } 493 devstat_remove_entry(&softc->device_stats); 494 cam_extend_release(cdperiphs, periph->unit_number); 495 free(softc, M_DEVBUF); 496 splx(s); 497} 498 499static void 500cdasync(void *callback_arg, u_int32_t code, 501 struct cam_path *path, void *arg) 502{ 503 struct cam_periph *periph; 504 505 periph = (struct cam_periph *)callback_arg; 506 switch (code) { 507 case AC_FOUND_DEVICE: 508 { 509 struct ccb_getdev *cgd; 510 cam_status status; 511 512 cgd = (struct ccb_getdev *)arg; 513 514 if ((cgd->pd_type != T_CDROM) && (cgd->pd_type != T_WORM)) 515 break; 516 517 /* 518 * Allocate a peripheral instance for 519 * this device and start the probe 520 * process. 521 */ 522 status = cam_periph_alloc(cdregister, cdoninvalidate, 523 cdcleanup, cdstart, 524 "cd", CAM_PERIPH_BIO, 525 cgd->ccb_h.path, cdasync, 526 AC_FOUND_DEVICE, cgd); 527 528 if (status != CAM_REQ_CMP 529 && status != CAM_REQ_INPROG) 530 printf("cdasync: Unable to attach new device " 531 "due to status 0x%x\n", status); 532 533 break; 534 } 535 case AC_LOST_DEVICE: 536 cam_periph_invalidate(periph); 537 break; 538 case AC_SENT_BDR: 539 case AC_BUS_RESET: 540 { 541 struct cd_softc *softc; 542 struct ccb_hdr *ccbh; 543 int s; 544 545 softc = (struct cd_softc *)periph->softc; 546 s = splsoftcam(); 547 /* 548 * Don't fail on the expected unit attention 549 * that will occur. 550 */ 551 softc->flags |= CD_FLAG_RETRY_UA; 552 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 553 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 554 ccbh->ccb_state |= CD_CCB_RETRY_UA; 555 splx(s); 556 break; 557 } 558 case AC_TRANSFER_NEG: 559 case AC_SCSI_AEN: 560 case AC_UNSOL_RESEL: 561 default: 562 break; 563 } 564} 565 566static cam_status 567cdregister(struct cam_periph *periph, void *arg) 568{ 569 struct cd_softc *softc; 570 struct ccb_setasync csa; 571 struct ccb_getdev *cgd; 572 caddr_t match; 573 574 cgd = (struct ccb_getdev *)arg; 575 if (periph == NULL) { 576 printf("cdregister: periph was NULL!!\n"); 577 return(CAM_REQ_CMP_ERR); 578 } 579 if (cgd == NULL) { 580 printf("cdregister: no getdev CCB, can't register device\n"); 581 return(CAM_REQ_CMP_ERR); 582 } 583 584 softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 585 586 if (softc == NULL) { 587 printf("cdregister: Unable to probe new device. " 588 "Unable to allocate softc\n"); 589 return(CAM_REQ_CMP_ERR); 590 } 591 592 bzero(softc, sizeof(*softc)); 593 LIST_INIT(&softc->pending_ccbs); 594 softc->state = CD_STATE_PROBE; 595 bufq_init(&softc->buf_queue); 596 if (SID_IS_REMOVABLE(&cgd->inq_data)) 597 softc->flags |= CD_FLAG_DISC_REMOVABLE; 598 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 599 softc->flags |= CD_FLAG_TAGGED_QUEUING; 600 601 periph->softc = softc; 602 softc->periph = periph; 603 604 cam_extend_set(cdperiphs, periph->unit_number, periph); 605 606 /* 607 * See if this device has any quirks. 608 */ 609 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 610 (caddr_t)cd_quirk_table, 611 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table), 612 sizeof(*cd_quirk_table), scsi_inquiry_match); 613 614 if (match != NULL) 615 softc->quirks = ((struct cd_quirk_entry *)match)->quirks; 616 else 617 softc->quirks = CD_Q_NONE; 618 619 /* 620 * We need to register the statistics structure for this device, 621 * but we don't have the blocksize yet for it. So, we register 622 * the structure and indicate that we don't have the blocksize 623 * yet. Unlike other SCSI peripheral drivers, we explicitly set 624 * the device type here to be CDROM, rather than just ORing in 625 * cgd->pd_type. This is because this driver can attach to either 626 * CDROM or WORM devices, and we want this peripheral driver to 627 * show up in the devstat list as a CD peripheral driver, not a 628 * WORM peripheral driver. WORM drives will also have the WORM 629 * driver attached to them. 630 */ 631 devstat_add_entry(&softc->device_stats, "cd", 632 periph->unit_number, 0, 633 DEVSTAT_BS_UNAVAILABLE, 634 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI, 635 DEVSTAT_PRIORITY_CD); 636 637 /* 638 * Add an async callback so that we get 639 * notified if this device goes away. 640 */ 641 xpt_setup_ccb(&csa.ccb_h, periph->path, 642 /* priority */ 5); 643 csa.ccb_h.func_code = XPT_SASYNC_CB; 644 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 645 csa.callback = cdasync; 646 csa.callback_arg = periph; 647 xpt_action((union ccb *)&csa); 648 649 /* 650 * If the target lun is greater than 0, we most likely have a CD 651 * changer device. Check the quirk entries as well, though, just 652 * in case someone has a CD tower with one lun per drive or 653 * something like that. Also, if we know up front that a 654 * particular device is a changer, we can mark it as such starting 655 * with lun 0, instead of lun 1. It shouldn't be necessary to have 656 * a quirk entry to define something as a changer, however. 657 */ 658 if (((cgd->ccb_h.target_lun > 0) 659 && ((softc->quirks & CD_Q_NO_CHANGER) == 0)) 660 || ((softc->quirks & CD_Q_CHANGER) != 0)) { 661 struct cdchanger *nchanger; 662 struct cam_periph *nperiph; 663 struct cam_path *path; 664 cam_status status; 665 int found; 666 667 /* Set the changer flag in the current device's softc */ 668 softc->flags |= CD_FLAG_CHANGER; 669 670 if (num_changers == 0) 671 STAILQ_INIT(&changerq); 672 673 /* 674 * Now, look around for an existing changer device with the 675 * same path and target ID as the current device. 676 */ 677 for (found = 0, 678 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq); 679 nchanger != NULL; 680 nchanger = STAILQ_NEXT(nchanger, changer_links)){ 681 if ((nchanger->path_id == cgd->ccb_h.path_id) 682 && (nchanger->target_id == cgd->ccb_h.target_id)) { 683 found = 1; 684 break; 685 } 686 } 687 688 /* 689 * If we found a matching entry, just add this device to 690 * the list of devices on this changer. 691 */ 692 if (found == 1) { 693 struct chdevlist *chlunhead; 694 695 chlunhead = &nchanger->chluns; 696 697 /* 698 * XXX KDM look at consolidating this code with the 699 * code below in a separate function. 700 */ 701 702 /* 703 * Create a path with lun id 0, and see if we can 704 * find a matching device 705 */ 706 status = xpt_create_path(&path, /*periph*/ periph, 707 cgd->ccb_h.path_id, 708 cgd->ccb_h.target_id, 0); 709 710 if ((status == CAM_REQ_CMP) 711 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){ 712 struct cd_softc *nsoftc; 713 714 nsoftc = (struct cd_softc *)nperiph->softc; 715 716 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){ 717 nsoftc->flags |= CD_FLAG_CHANGER; 718 nchanger->num_devices++; 719 if (camq_resize(&nchanger->devq, 720 nchanger->num_devices)!=CAM_REQ_CMP){ 721 printf("cdregister: " 722 "camq_resize " 723 "failed, changer " 724 "support may " 725 "be messed up\n"); 726 } 727 nsoftc->changer = nchanger; 728 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX; 729 730 STAILQ_INSERT_TAIL(&nchanger->chluns, 731 nsoftc,changer_links); 732 } 733 } else if (status == CAM_REQ_CMP) 734 xpt_free_path(path); 735 else { 736 printf("cdregister: unable to allocate path\n" 737 "cdregister: changer support may be " 738 "broken\n"); 739 } 740 741 nchanger->num_devices++; 742 743 softc->changer = nchanger; 744 softc->pinfo.index = CAM_UNQUEUED_INDEX; 745 746 if (camq_resize(&nchanger->devq, 747 nchanger->num_devices) != CAM_REQ_CMP) { 748 printf("cdregister: camq_resize " 749 "failed, changer support may " 750 "be messed up\n"); 751 } 752 753 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links); 754 } 755 /* 756 * In this case, we don't already have an entry for this 757 * particular changer, so we need to create one, add it to 758 * the queue, and queue this device on the list for this 759 * changer. Before we queue this device, however, we need 760 * to search for lun id 0 on this target, and add it to the 761 * queue first, if it exists. (and if it hasn't already 762 * been marked as part of the changer.) 763 */ 764 else { 765 nchanger = malloc(sizeof(struct cdchanger), 766 M_DEVBUF, M_NOWAIT); 767 768 if (nchanger == NULL) { 769 softc->flags &= ~CD_FLAG_CHANGER; 770 printf("cdregister: unable to malloc " 771 "changer structure\ncdregister: " 772 "changer support disabled\n"); 773 774 /* 775 * Yes, gotos can be gross but in this case 776 * I think it's justified.. 777 */ 778 goto cdregisterexit; 779 } 780 781 /* zero the structure */ 782 bzero(nchanger, sizeof(struct cdchanger)); 783 784 if (camq_init(&nchanger->devq, 1) != 0) { 785 softc->flags &= ~CD_FLAG_CHANGER; 786 printf("cdregister: changer support " 787 "disabled\n"); 788 goto cdregisterexit; 789 } 790 791 num_changers++; 792 793 nchanger->path_id = cgd->ccb_h.path_id; 794 nchanger->target_id = cgd->ccb_h.target_id; 795 796 /* this is superfluous, but it makes things clearer */ 797 nchanger->num_devices = 0; 798 799 STAILQ_INIT(&nchanger->chluns); 800 801 STAILQ_INSERT_TAIL(&changerq, nchanger, 802 changer_links); 803 804 /* 805 * Create a path with lun id 0, and see if we can 806 * find a matching device 807 */ 808 status = xpt_create_path(&path, /*periph*/ periph, 809 cgd->ccb_h.path_id, 810 cgd->ccb_h.target_id, 0); 811 812 /* 813 * If we were able to allocate the path, and if we 814 * find a matching device and it isn't already 815 * marked as part of a changer, then we add it to 816 * the current changer. 817 */ 818 if ((status == CAM_REQ_CMP) 819 && ((nperiph = cam_periph_find(path, "cd")) != NULL) 820 && ((((struct cd_softc *)periph->softc)->flags & 821 CD_FLAG_CHANGER) == 0)) { 822 struct cd_softc *nsoftc; 823 824 nsoftc = (struct cd_softc *)nperiph->softc; 825 826 nsoftc->flags |= CD_FLAG_CHANGER; 827 nchanger->num_devices++; 828 if (camq_resize(&nchanger->devq, 829 nchanger->num_devices) != CAM_REQ_CMP) { 830 printf("cdregister: camq_resize " 831 "failed, changer support may " 832 "be messed up\n"); 833 } 834 nsoftc->changer = nchanger; 835 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX; 836 837 STAILQ_INSERT_TAIL(&nchanger->chluns, 838 nsoftc, changer_links); 839 } else if (status == CAM_REQ_CMP) 840 xpt_free_path(path); 841 else { 842 printf("cdregister: unable to allocate path\n" 843 "cdregister: changer support may be " 844 "broken\n"); 845 } 846 847 softc->changer = nchanger; 848 softc->pinfo.index = CAM_UNQUEUED_INDEX; 849 nchanger->num_devices++; 850 if (camq_resize(&nchanger->devq, 851 nchanger->num_devices) != CAM_REQ_CMP) { 852 printf("cdregister: camq_resize " 853 "failed, changer support may " 854 "be messed up\n"); 855 } 856 STAILQ_INSERT_TAIL(&nchanger->chluns, softc, 857 changer_links); 858 } 859 } 860 861cdregisterexit: 862 863 /* Lock this peripheral until we are setup */ 864 /* Can't block */ 865 cam_periph_lock(periph, PRIBIO); 866 867 if ((softc->flags & CD_FLAG_CHANGER) == 0) 868 xpt_schedule(periph, /*priority*/5); 869 else 870 cdschedule(periph, /*priority*/ 5); 871 872 return(CAM_REQ_CMP); 873} 874 875static int 876cdopen(dev_t dev, int flags, int fmt, struct proc *p) 877{ 878 struct disklabel label; 879 struct cam_periph *periph; 880 struct cd_softc *softc; 881 struct ccb_getdev cgd; 882 u_int32_t size; 883 int unit, error; 884 int s; 885 886 unit = dkunit(dev); 887 periph = cam_extend_get(cdperiphs, unit); 888 889 if (periph == NULL) 890 return (ENXIO); 891 892 softc = (struct cd_softc *)periph->softc; 893 894 /* 895 * Grab splsoftcam and hold it until we lock the peripheral. 896 */ 897 s = splsoftcam(); 898 if (softc->flags & CD_FLAG_INVALID) { 899 splx(s); 900 return(ENXIO); 901 } 902 903 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 904 splx(s); 905 return (error); 906 } 907 908 splx(s); 909 910 if ((softc->flags & CD_FLAG_OPEN) == 0) { 911 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 912 return(ENXIO); 913 softc->flags |= CD_FLAG_OPEN; 914 915 cdprevent(periph, PR_PREVENT); 916 } 917 918 /* find out the size */ 919 if ((error = cdsize(dev, &size)) != 0) { 920 if (dsisopen(softc->cd_slices) == 0) { 921 cdprevent(periph, PR_ALLOW); 922 softc->flags &= ~CD_FLAG_OPEN; 923 } 924 cam_periph_unlock(periph); 925 926 if ((softc->flags & CD_FLAG_OPEN) == 0) 927 cam_periph_release(periph); 928 929 return(error); 930 } 931 932 /* 933 * Build prototype label for whole disk. 934 * Should take information about different data tracks from the 935 * TOC and put it in the partition table. 936 */ 937 bzero(&label, sizeof(label)); 938 label.d_type = DTYPE_SCSI; 939 940 /* 941 * Grab the inquiry data to get the vendor and product names. 942 * Put them in the typename and packname for the label. 943 */ 944 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 945 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 946 xpt_action((union ccb *)&cgd); 947 948 strncpy(label.d_typename, cgd.inq_data.vendor, 949 min(SID_VENDOR_SIZE, sizeof(label.d_typename))); 950 strncpy(label.d_packname, cgd.inq_data.product, 951 min(SID_PRODUCT_SIZE, sizeof(label.d_packname))); 952 953 label.d_secsize = softc->params.blksize; 954 label.d_secperunit = softc->params.disksize; 955 label.d_flags = D_REMOVABLE; 956 /* 957 * Make partition 'a' cover the whole disk. This is a temporary 958 * compatibility hack. The 'a' partition should not exist, so 959 * the slice code won't create it. The slice code will make 960 * partition (RAW_PART + 'a') cover the whole disk and fill in 961 * some more defaults. 962 */ 963 label.d_partitions[0].p_size = label.d_secperunit; 964 label.d_partitions[0].p_fstype = FS_OTHER; 965 966 /* Initialize slice tables. */ 967 error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE, 968 &softc->cd_slices, &label, cdstrategy1, 969 (ds_setgeom_t *)NULL, &cd_cdevsw); 970 971 if (error == 0) { 972 /* 973 * We unconditionally (re)set the blocksize each time the 974 * CD device is opened. This is because the CD can change, 975 * and therefore the blocksize might change. 976 * XXX problems here if some slice or partition is still 977 * open with the old size? 978 */ 979 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0) 980 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 981 softc->device_stats.block_size = softc->params.blksize; 982 } else { 983 if ((dsisopen(softc->cd_slices) == 0) 984 && ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)) 985 cdprevent(periph, PR_ALLOW); 986 } 987 988 cam_periph_unlock(periph); 989 990 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n")); 991 992 return (error); 993} 994 995static int 996cdclose(dev_t dev, int flag, int fmt, struct proc *p) 997{ 998 struct cam_periph *periph; 999 struct cd_softc *softc; 1000 int unit, error; 1001 1002 unit = dkunit(dev); 1003 periph = cam_extend_get(cdperiphs, unit); 1004 if (periph == NULL) 1005 return (ENXIO); 1006 1007 softc = (struct cd_softc *)periph->softc; 1008 1009 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 1010 return (error); 1011 1012 dsclose(dev, fmt, softc->cd_slices); 1013 if (dsisopen(softc->cd_slices)) { 1014 cam_periph_unlock(periph); 1015 return (0); 1016 } 1017 1018 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0) 1019 cdprevent(periph, PR_ALLOW); 1020 1021 /* 1022 * Since we're closing this CD, mark the blocksize as unavailable. 1023 * It will be marked as available whence the CD is opened again. 1024 */ 1025 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 1026 1027 softc->flags &= ~CD_FLAG_OPEN; 1028 cam_periph_unlock(periph); 1029 cam_periph_release(periph); 1030 1031 return (0); 1032} 1033 1034static int 1035cdread(dev_t dev, struct uio *uio, int ioflag) 1036{ 1037 return(physio(cdstrategy, NULL, dev, 1, minphys, uio)); 1038} 1039 1040static void 1041cdshorttimeout(void *arg) 1042{ 1043 struct cdchanger *changer; 1044 int s; 1045 1046 s = splsoftcam(); 1047 1048 changer = (struct cdchanger *)arg; 1049 1050 /* Always clear the short timeout flag, since that's what we're in */ 1051 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1052 1053 /* 1054 * Check to see if there is any more pending or outstanding I/O for 1055 * this device. If not, move it out of the active slot. 1056 */ 1057 if ((bufq_first(&changer->cur_device->buf_queue) == NULL) 1058 && (changer->cur_device->device_stats.busy_count == 0)) { 1059 changer->flags |= CHANGER_MANUAL_CALL; 1060 cdrunchangerqueue(changer); 1061 } 1062 1063 splx(s); 1064} 1065 1066/* 1067 * This is a wrapper for xpt_schedule. It only applies to changers. 1068 */ 1069static void 1070cdschedule(struct cam_periph *periph, int priority) 1071{ 1072 struct cd_softc *softc; 1073 int s; 1074 1075 s = splsoftcam(); 1076 1077 softc = (struct cd_softc *)periph->softc; 1078 1079 /* 1080 * If this device isn't currently queued, and if it isn't 1081 * the active device, then we queue this device and run the 1082 * changer queue if there is no timeout scheduled to do it. 1083 * If this device is the active device, just schedule it 1084 * to run again. If this device is queued, there should be 1085 * a timeout in place already that will make sure it runs. 1086 */ 1087 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX) 1088 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) { 1089 /* 1090 * We don't do anything with the priority here. 1091 * This is strictly a fifo queue. 1092 */ 1093 softc->pinfo.priority = 1; 1094 softc->pinfo.generation = ++softc->changer->devq.generation; 1095 camq_insert(&softc->changer->devq, (cam_pinfo *)softc); 1096 1097 /* 1098 * Since we just put a device in the changer queue, 1099 * check and see if there is a timeout scheduled for 1100 * this changer. If so, let the timeout handle 1101 * switching this device into the active slot. If 1102 * not, manually call the timeout routine to 1103 * bootstrap things. 1104 */ 1105 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0) 1106 &&((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)){ 1107 softc->changer->flags |= CHANGER_MANUAL_CALL; 1108 cdrunchangerqueue(softc->changer); 1109 } 1110 } else if ((softc->flags & CD_FLAG_ACTIVE) 1111 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) 1112 xpt_schedule(periph, priority); 1113 1114 splx(s); 1115 1116} 1117 1118static void 1119cdrunchangerqueue(void *arg) 1120{ 1121 struct cd_softc *softc; 1122 struct cdchanger *changer; 1123 int called_from_timeout; 1124 int s; 1125 1126 s = splsoftcam(); 1127 1128 changer = (struct cdchanger *)arg; 1129 1130 /* 1131 * If we have NOT been called from cdstrategy() or cddone(), and 1132 * instead from a timeout routine, go ahead and clear the 1133 * timeout flag. 1134 */ 1135 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) { 1136 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1137 called_from_timeout = 1; 1138 } else 1139 called_from_timeout = 0; 1140 1141 /* Always clear the manual call flag */ 1142 changer->flags &= ~CHANGER_MANUAL_CALL; 1143 1144 /* nothing to do if the queue is empty */ 1145 if (changer->devq.entries <= 0) { 1146 splx(s); 1147 return; 1148 } 1149 1150 /* 1151 * If the changer queue is frozen, that means we have an active 1152 * device. 1153 */ 1154 if (changer->devq.qfrozen_cnt > 0) { 1155 1156 if (changer->cur_device->device_stats.busy_count > 0) { 1157 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP; 1158 changer->cur_device->bufs_left = 1159 changer->cur_device->device_stats.busy_count; 1160 if (called_from_timeout) { 1161 changer->long_handle = 1162 timeout(cdrunchangerqueue, changer, 1163 changer_max_busy_seconds * hz); 1164 changer->flags |= CHANGER_TIMEOUT_SCHED; 1165 } 1166 splx(s); 1167 return; 1168 } 1169 1170 /* 1171 * We always need to reset the frozen count and clear the 1172 * active flag. 1173 */ 1174 changer->devq.qfrozen_cnt--; 1175 changer->cur_device->flags &= ~CD_FLAG_ACTIVE; 1176 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP; 1177 1178 /* 1179 * Check to see whether the current device has any I/O left 1180 * to do. If so, requeue it at the end of the queue. If 1181 * not, there is no need to requeue it. 1182 */ 1183 if (bufq_first(&changer->cur_device->buf_queue) != NULL) { 1184 1185 changer->cur_device->pinfo.generation = 1186 ++changer->devq.generation; 1187 camq_insert(&changer->devq, 1188 (cam_pinfo *)changer->cur_device); 1189 } 1190 } 1191 1192 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD); 1193 1194 changer->cur_device = softc; 1195 1196 changer->devq.qfrozen_cnt++; 1197 softc->flags |= CD_FLAG_ACTIVE; 1198 1199 /* Just in case this device is waiting */ 1200 wakeup(&softc->changer); 1201 xpt_schedule(softc->periph, /*priority*/ 1); 1202 1203 /* 1204 * Get rid of any pending timeouts, and set a flag to schedule new 1205 * ones so this device gets its full time quantum. 1206 */ 1207 if (changer->flags & CHANGER_TIMEOUT_SCHED) { 1208 untimeout(cdrunchangerqueue, changer, changer->long_handle); 1209 changer->flags &= ~CHANGER_TIMEOUT_SCHED; 1210 } 1211 1212 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) { 1213 untimeout(cdshorttimeout, changer, changer->short_handle); 1214 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED; 1215 } 1216 1217 /* 1218 * We need to schedule timeouts, but we only do this after the 1219 * first transaction has completed. This eliminates the changer 1220 * switch time. 1221 */ 1222 changer->flags |= CHANGER_NEED_TIMEOUT; 1223 1224 splx(s); 1225} 1226 1227static void 1228cdchangerschedule(struct cd_softc *softc) 1229{ 1230 struct cdchanger *changer; 1231 int s; 1232 1233 s = splsoftcam(); 1234 1235 changer = softc->changer; 1236 1237 /* 1238 * If this is a changer, and this is the current device, 1239 * and this device has at least the minimum time quantum to 1240 * run, see if we can switch it out. 1241 */ 1242 if ((softc->flags & CD_FLAG_ACTIVE) 1243 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) 1244 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) { 1245 /* 1246 * We try three things here. The first is that we 1247 * check to see whether the schedule on completion 1248 * flag is set. If it is, we decrement the number 1249 * of buffers left, and if it's zero, we reschedule. 1250 * Next, we check to see whether the pending buffer 1251 * queue is empty and whether there are no 1252 * outstanding transactions. If so, we reschedule. 1253 * Next, we see if the pending buffer queue is empty. 1254 * If it is, we set the number of buffers left to 1255 * the current active buffer count and set the 1256 * schedule on complete flag. 1257 */ 1258 if (softc->flags & CD_FLAG_SCHED_ON_COMP) { 1259 if (--softc->bufs_left == 0) { 1260 softc->changer->flags |= 1261 CHANGER_MANUAL_CALL; 1262 softc->flags &= ~CD_FLAG_SCHED_ON_COMP; 1263 cdrunchangerqueue(softc->changer); 1264 } 1265 } else if ((bufq_first(&softc->buf_queue) == NULL) 1266 && (softc->device_stats.busy_count == 0)) { 1267 softc->changer->flags |= CHANGER_MANUAL_CALL; 1268 cdrunchangerqueue(softc->changer); 1269 } 1270 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT) 1271 && (softc->flags & CD_FLAG_ACTIVE)) { 1272 1273 /* 1274 * Now that the first transaction to this 1275 * particular device has completed, we can go ahead 1276 * and schedule our timeouts. 1277 */ 1278 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) { 1279 changer->long_handle = 1280 timeout(cdrunchangerqueue, changer, 1281 changer_max_busy_seconds * hz); 1282 changer->flags |= CHANGER_TIMEOUT_SCHED; 1283 } else 1284 printf("cdchangerschedule: already have a long" 1285 " timeout!\n"); 1286 1287 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) { 1288 changer->short_handle = 1289 timeout(cdshorttimeout, changer, 1290 changer_min_busy_seconds * hz); 1291 changer->flags |= CHANGER_SHORT_TMOUT_SCHED; 1292 } else 1293 printf("cdchangerschedule: already have a short " 1294 "timeout!\n"); 1295 1296 /* 1297 * We just scheduled timeouts, no need to schedule 1298 * more. 1299 */ 1300 changer->flags &= ~CHANGER_NEED_TIMEOUT; 1301 1302 } 1303 splx(s); 1304} 1305 1306static int 1307cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb, 1308 u_int32_t cam_flags, 1309 u_int32_t sense_flags), 1310 u_int32_t cam_flags, u_int32_t sense_flags) 1311{ 1312 struct cd_softc *softc; 1313 struct cam_periph *periph; 1314 int error; 1315 1316 periph = xpt_path_periph(ccb->ccb_h.path); 1317 softc = (struct cd_softc *)periph->softc; 1318 1319 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags, 1320 &softc->device_stats); 1321 1322 if (softc->flags & CD_FLAG_CHANGER) 1323 cdchangerschedule(softc); 1324 1325 return(error); 1326} 1327 1328static union ccb * 1329cdgetccb(struct cam_periph *periph, u_int32_t priority) 1330{ 1331 struct cd_softc *softc; 1332 int s; 1333 1334 softc = (struct cd_softc *)periph->softc; 1335 1336 if (softc->flags & CD_FLAG_CHANGER) { 1337 1338 s = splsoftcam(); 1339 1340 /* 1341 * This should work the first time this device is woken up, 1342 * but just in case it doesn't, we use a while loop. 1343 */ 1344 while ((((volatile cd_flags)softc->flags) & CD_FLAG_ACTIVE)==0){ 1345 /* 1346 * If this changer isn't already queued, queue it up. 1347 */ 1348 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) { 1349 softc->pinfo.priority = 1; 1350 softc->pinfo.generation = 1351 ++softc->changer->devq.generation; 1352 camq_insert(&softc->changer->devq, 1353 (cam_pinfo *)softc); 1354 } 1355 if (((((volatile cd_changer_flags)softc->changer->flags) 1356 & CHANGER_TIMEOUT_SCHED)==0) 1357 &&((((volatile cd_changer_flags)softc->changer->flags) 1358 & CHANGER_NEED_TIMEOUT)==0)){ 1359 softc->changer->flags |= CHANGER_MANUAL_CALL; 1360 cdrunchangerqueue(softc->changer); 1361 } else 1362 tsleep(&softc->changer, PRIBIO, "cgticb", 0); 1363 } 1364 splx(s); 1365 } 1366 return(cam_periph_getccb(periph, priority)); 1367} 1368 1369 1370/* 1371 * Actually translate the requested transfer into one the physical driver 1372 * can understand. The transfer is described by a buf and will include 1373 * only one physical transfer. 1374 */ 1375static void 1376cdstrategy(struct buf *bp) 1377{ 1378 struct cam_periph *periph; 1379 struct cd_softc *softc; 1380 u_int unit, part; 1381 int s; 1382 1383 unit = dkunit(bp->b_dev); 1384 part = dkpart(bp->b_dev); 1385 periph = cam_extend_get(cdperiphs, unit); 1386 if (periph == NULL) { 1387 bp->b_error = ENXIO; 1388 goto bad; 1389 } 1390 1391 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n")); 1392 1393 softc = (struct cd_softc *)periph->softc; 1394 1395 /* 1396 * Do bounds checking, adjust transfer, and set b_pbklno. 1397 */ 1398 if (dscheck(bp, softc->cd_slices) <= 0) 1399 goto done; 1400 1401 /* 1402 * Mask interrupts so that the pack cannot be invalidated until 1403 * after we are in the queue. Otherwise, we might not properly 1404 * clean up one of the buffers. 1405 */ 1406 s = splbio(); 1407 1408 /* 1409 * If the device has been made invalid, error out 1410 */ 1411 if ((softc->flags & CD_FLAG_INVALID)) { 1412 splx(s); 1413 bp->b_error = ENXIO; 1414 goto bad; 1415 } 1416 1417 /* 1418 * Place it in the queue of disk activities for this disk 1419 */ 1420 bufqdisksort(&softc->buf_queue, bp); 1421 1422 splx(s); 1423 1424 /* 1425 * Schedule ourselves for performing the work. We do things 1426 * differently for changers. 1427 */ 1428 if ((softc->flags & CD_FLAG_CHANGER) == 0) 1429 xpt_schedule(periph, /* XXX priority */1); 1430 else 1431 cdschedule(periph, /* priority */ 1); 1432 1433 return; 1434bad: 1435 bp->b_flags |= B_ERROR; 1436done: 1437 /* 1438 * Correctly set the buf to indicate a completed xfer 1439 */ 1440 bp->b_resid = bp->b_bcount; 1441 biodone(bp); 1442 return; 1443} 1444 1445static void 1446cdstrategy1(struct buf *bp) 1447{ 1448 /* 1449 * XXX - do something to make cdstrategy() but not this block while 1450 * we're doing dsopen() and dsioctl(). 1451 */ 1452 cdstrategy(bp); 1453} 1454 1455static void 1456cdstart(struct cam_periph *periph, union ccb *start_ccb) 1457{ 1458 struct cd_softc *softc; 1459 struct buf *bp; 1460 struct ccb_scsiio *csio; 1461 struct scsi_read_capacity_data *rcap; 1462 int s; 1463 1464 softc = (struct cd_softc *)periph->softc; 1465 1466 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n")); 1467 1468 switch (softc->state) { 1469 case CD_STATE_NORMAL: 1470 { 1471 int oldspl; 1472 1473 s = splbio(); 1474 bp = bufq_first(&softc->buf_queue); 1475 if (periph->immediate_priority <= periph->pinfo.priority) { 1476 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING; 1477 1478 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1479 periph_links.sle); 1480 periph->immediate_priority = CAM_PRIORITY_NONE; 1481 splx(s); 1482 wakeup(&periph->ccb_list); 1483 } else if (bp == NULL) { 1484 splx(s); 1485 xpt_release_ccb(start_ccb); 1486 } else { 1487 bufq_remove(&softc->buf_queue, bp); 1488 1489 devstat_start_transaction(&softc->device_stats); 1490 1491 scsi_read_write(&start_ccb->csio, 1492 /*retries*/4, 1493 /* cbfcnp */ cddone, 1494 (bp->b_flags & B_ORDERED) != 0 ? 1495 MSG_ORDERED_Q_TAG : 1496 MSG_SIMPLE_Q_TAG, 1497 /* read */bp->b_flags & B_READ, 1498 /* byte2 */ 0, 1499 /* minimum_cmd_size */ 10, 1500 /* lba */ bp->b_pblkno, 1501 bp->b_bcount / softc->params.blksize, 1502 /* data_ptr */ bp->b_data, 1503 /* dxfer_len */ bp->b_bcount, 1504 /* sense_len */ SSD_FULL_SIZE, 1505 /* timeout */ 30000); 1506 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO; 1507 1508 1509 /* 1510 * Block out any asyncronous callbacks 1511 * while we touch the pending ccb list. 1512 */ 1513 oldspl = splcam(); 1514 LIST_INSERT_HEAD(&softc->pending_ccbs, 1515 &start_ccb->ccb_h, periph_links.le); 1516 splx(oldspl); 1517 1518 /* We expect a unit attention from this device */ 1519 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) { 1520 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA; 1521 softc->flags &= ~CD_FLAG_RETRY_UA; 1522 } 1523 1524 start_ccb->ccb_h.ccb_bp = bp; 1525 bp = bufq_first(&softc->buf_queue); 1526 splx(s); 1527 1528 xpt_action(start_ccb); 1529 } 1530 if (bp != NULL) { 1531 /* Have more work to do, so ensure we stay scheduled */ 1532 xpt_schedule(periph, /* XXX priority */1); 1533 } 1534 break; 1535 } 1536 case CD_STATE_PROBE: 1537 { 1538 1539 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1540 M_TEMP, 1541 M_NOWAIT); 1542 if (rcap == NULL) { 1543 xpt_print_path(periph->path); 1544 printf("cdstart: Couldn't malloc read_capacity data\n"); 1545 /* cd_free_periph??? */ 1546 break; 1547 } 1548 csio = &start_ccb->csio; 1549 scsi_read_capacity(csio, 1550 /*retries*/1, 1551 cddone, 1552 MSG_SIMPLE_Q_TAG, 1553 rcap, 1554 SSD_FULL_SIZE, 1555 /*timeout*/20000); 1556 start_ccb->ccb_h.ccb_bp = NULL; 1557 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE; 1558 xpt_action(start_ccb); 1559 break; 1560 } 1561 } 1562} 1563 1564static void 1565cddone(struct cam_periph *periph, union ccb *done_ccb) 1566{ 1567 struct cd_softc *softc; 1568 struct ccb_scsiio *csio; 1569 1570 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n")); 1571 1572 softc = (struct cd_softc *)periph->softc; 1573 csio = &done_ccb->csio; 1574 1575 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) { 1576 case CD_CCB_BUFFER_IO: 1577 { 1578 struct buf *bp; 1579 int error; 1580 int oldspl; 1581 1582 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1583 error = 0; 1584 1585 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1586 int sf; 1587 1588 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0) 1589 sf = SF_RETRY_UA; 1590 else 1591 sf = 0; 1592 1593 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) { 1594 /* 1595 * A retry was scheuled, so 1596 * just return. 1597 */ 1598 return; 1599 } 1600 } 1601 1602 if (error != 0) { 1603 int s; 1604 struct buf *q_bp; 1605 1606 xpt_print_path(periph->path); 1607 printf("cddone: got error %#x back\n", error); 1608 s = splbio(); 1609 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) { 1610 bufq_remove(&softc->buf_queue, q_bp); 1611 q_bp->b_resid = q_bp->b_bcount; 1612 q_bp->b_error = EIO; 1613 q_bp->b_flags |= B_ERROR; 1614 biodone(q_bp); 1615 } 1616 splx(s); 1617 bp->b_resid = bp->b_bcount; 1618 bp->b_error = error; 1619 bp->b_flags |= B_ERROR; 1620 cam_release_devq(done_ccb->ccb_h.path, 1621 /*relsim_flags*/0, 1622 /*reduction*/0, 1623 /*timeout*/0, 1624 /*getcount_only*/0); 1625 1626 } else { 1627 bp->b_resid = csio->resid; 1628 bp->b_error = 0; 1629 if (bp->b_resid != 0) { 1630 /* Short transfer ??? */ 1631 bp->b_flags |= B_ERROR; 1632 } 1633 } 1634 1635 /* 1636 * Block out any asyncronous callbacks 1637 * while we touch the pending ccb list. 1638 */ 1639 oldspl = splcam(); 1640 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1641 splx(oldspl); 1642 1643 devstat_end_transaction(&softc->device_stats, 1644 bp->b_bcount - bp->b_resid, 1645 done_ccb->csio.tag_action & 0xf, 1646 (bp->b_flags & B_READ) ? DEVSTAT_READ 1647 : DEVSTAT_WRITE); 1648 1649 if (softc->flags & CD_FLAG_CHANGER) 1650 cdchangerschedule(softc); 1651 1652 biodone(bp); 1653 break; 1654 } 1655 case CD_CCB_PROBE: 1656 { 1657 struct scsi_read_capacity_data *rdcap; 1658 char announce_buf[120]; /* 1659 * Currently (9/30/97) the 1660 * longest possible announce 1661 * buffer is 108 bytes, for the 1662 * first error case below. 1663 * That is 39 bytes for the 1664 * basic string, 16 bytes for the 1665 * biggest sense key (hardware 1666 * error), 52 bytes for the 1667 * text of the largest sense 1668 * qualifier valid for a CDROM, 1669 * (0x72, 0x03 or 0x04, 1670 * 0x03), and one byte for the 1671 * null terminating character. 1672 * To allow for longer strings, 1673 * the announce buffer is 120 1674 * bytes. 1675 */ 1676 struct cd_params *cdp; 1677 1678 cdp = &softc->params; 1679 1680 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1681 1682 cdp->disksize = scsi_4btoul (rdcap->addr) + 1; 1683 cdp->blksize = scsi_4btoul (rdcap->length); 1684 1685 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1686 1687 snprintf(announce_buf, sizeof(announce_buf), 1688 "cd present [%lu x %lu byte records]", 1689 cdp->disksize, (u_long)cdp->blksize); 1690 1691 } else { 1692 int error; 1693 /* 1694 * Retry any UNIT ATTENTION type errors. They 1695 * are expected at boot. 1696 */ 1697 error = cderror(done_ccb, 0, SF_RETRY_UA|SF_NO_PRINT); 1698 if (error == ERESTART) { 1699 /* 1700 * A retry was scheuled, so 1701 * just return. 1702 */ 1703 return; 1704 } else if (error != 0) { 1705 1706 struct scsi_sense_data *sense; 1707 int asc, ascq; 1708 int sense_key, error_code; 1709 int have_sense; 1710 cam_status status; 1711 struct ccb_getdev cgd; 1712 1713 /* Don't wedge this device's queue */ 1714 cam_release_devq(done_ccb->ccb_h.path, 1715 /*relsim_flags*/0, 1716 /*reduction*/0, 1717 /*timeout*/0, 1718 /*getcount_only*/0); 1719 1720 status = done_ccb->ccb_h.status; 1721 1722 xpt_setup_ccb(&cgd.ccb_h, 1723 done_ccb->ccb_h.path, 1724 /* priority */ 1); 1725 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1726 xpt_action((union ccb *)&cgd); 1727 1728 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1729 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1730 || ((status & CAM_AUTOSNS_VALID) == 0)) 1731 have_sense = FALSE; 1732 else 1733 have_sense = TRUE; 1734 1735 if (have_sense) { 1736 sense = &csio->sense_data; 1737 scsi_extract_sense(sense, &error_code, 1738 &sense_key, 1739 &asc, &ascq); 1740 } 1741 /* 1742 * With CDROM devices, we expect 0x3a 1743 * (Medium not present) errors, since not 1744 * everyone leaves a CD in the drive. Some 1745 * broken Philips and HP WORM drives return 1746 * 0x04,0x00 (logical unit not ready, cause 1747 * not reportable), so we accept any "not 1748 * ready" type errors as well. If the error 1749 * is anything else, though, we shouldn't 1750 * attach. 1751 */ 1752 if ((have_sense) 1753 && ((asc == 0x3a) || (asc == 0x04)) 1754 && (error_code == SSD_CURRENT_ERROR)) 1755 snprintf(announce_buf, 1756 sizeof(announce_buf), 1757 "Attempt to query device " 1758 "size failed: %s, %s", 1759 scsi_sense_key_text[sense_key], 1760 scsi_sense_desc(asc,ascq, 1761 &cgd.inq_data)); 1762 else if (cgd.pd_type == T_CDROM) { 1763 /* 1764 * We only print out an error for 1765 * CDROM type devices. For WORM 1766 * devices, we don't print out an 1767 * error since a few WORM devices 1768 * don't support CDROM commands. 1769 * If we have sense information, go 1770 * ahead and print it out. 1771 * Otherwise, just say that we 1772 * couldn't attach. 1773 */ 1774 1775 /* 1776 * Just print out the error, not 1777 * the full probe message, when we 1778 * don't attach. 1779 */ 1780 if (have_sense) 1781 scsi_sense_print( 1782 &done_ccb->csio); 1783 else { 1784 xpt_print_path(periph->path); 1785 printf("got CAM status %#x\n", 1786 done_ccb->ccb_h.status); 1787 } 1788 xpt_print_path(periph->path); 1789 printf("fatal error, failed" 1790 " to attach to device\n"); 1791 1792 /* 1793 * Invalidate this peripheral. 1794 */ 1795 cam_periph_invalidate(periph); 1796 1797 announce_buf[0] = '\0'; 1798 } else { 1799 1800 /* 1801 * Invalidate this peripheral. 1802 */ 1803 cam_periph_invalidate(periph); 1804 announce_buf[0] = '\0'; 1805 } 1806 } 1807 } 1808 free(rdcap, M_TEMP); 1809 if (announce_buf[0] != '\0') { 1810 xpt_announce_periph(periph, announce_buf); 1811 if (softc->flags & CD_FLAG_CHANGER) 1812 cdchangerschedule(softc); 1813 } 1814 softc->state = CD_STATE_NORMAL; 1815 /* 1816 * Since our peripheral may be invalidated by an error 1817 * above or an external event, we must release our CCB 1818 * before releasing the probe lock on the peripheral. 1819 * The peripheral will only go away once the last lock 1820 * is removed, and we need it around for the CCB release 1821 * operation. 1822 */ 1823 xpt_release_ccb(done_ccb); 1824 cam_periph_unlock(periph); 1825 return; 1826 } 1827 case CD_CCB_WAITING: 1828 { 1829 /* Caller will release the CCB */ 1830 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1831 ("trying to wakeup ccbwait\n")); 1832 1833 wakeup(&done_ccb->ccb_h.cbfcnp); 1834 return; 1835 } 1836 default: 1837 break; 1838 } 1839 xpt_release_ccb(done_ccb); 1840} 1841 1842static int 1843cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1844{ 1845 1846 struct cam_periph *periph; 1847 struct cd_softc *softc; 1848 int error, unit; 1849 1850 unit = dkunit(dev); 1851 1852 periph = cam_extend_get(cdperiphs, unit); 1853 if (periph == NULL) 1854 return(ENXIO); 1855 1856 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n")); 1857 1858 softc = (struct cd_softc *)periph->softc; 1859 1860 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1861 ("trying to do ioctl %#lx\n", cmd)); 1862 1863 error = cam_periph_lock(periph, PRIBIO | PCATCH); 1864 1865 if (error != 0) 1866 return(error); 1867 1868 switch (cmd) { 1869 1870 case CDIOCPLAYTRACKS: 1871 { 1872 struct ioc_play_track *args 1873 = (struct ioc_play_track *) addr; 1874 struct cd_mode_data *data; 1875 1876 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1877 M_WAITOK); 1878 1879 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1880 ("trying to do CDIOCPLAYTRACKS\n")); 1881 1882 error = cdgetmode(periph, data, AUDIO_PAGE); 1883 if (error) { 1884 free(data, M_TEMP); 1885 break; 1886 } 1887 data->page.audio.flags &= ~CD_PA_SOTC; 1888 data->page.audio.flags |= CD_PA_IMMED; 1889 error = cdsetmode(periph, data); 1890 free(data, M_TEMP); 1891 if (error) 1892 break; 1893 if (softc->quirks & CD_Q_BCD_TRACKS) { 1894 args->start_track = bin2bcd(args->start_track); 1895 args->end_track = bin2bcd(args->end_track); 1896 } 1897 error = cdplaytracks(periph, 1898 args->start_track, 1899 args->start_index, 1900 args->end_track, 1901 args->end_index); 1902 } 1903 break; 1904 case CDIOCPLAYMSF: 1905 { 1906 struct ioc_play_msf *args 1907 = (struct ioc_play_msf *) addr; 1908 struct cd_mode_data *data; 1909 1910 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1911 M_WAITOK); 1912 1913 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1914 ("trying to do CDIOCPLAYMSF\n")); 1915 1916 error = cdgetmode(periph, data, AUDIO_PAGE); 1917 if (error) { 1918 free(data, M_TEMP); 1919 break; 1920 } 1921 data->page.audio.flags &= ~CD_PA_SOTC; 1922 data->page.audio.flags |= CD_PA_IMMED; 1923 error = cdsetmode(periph, data); 1924 free(data, M_TEMP); 1925 if (error) 1926 break; 1927 error = cdplaymsf(periph, 1928 args->start_m, 1929 args->start_s, 1930 args->start_f, 1931 args->end_m, 1932 args->end_s, 1933 args->end_f); 1934 } 1935 break; 1936 case CDIOCPLAYBLOCKS: 1937 { 1938 struct ioc_play_blocks *args 1939 = (struct ioc_play_blocks *) addr; 1940 struct cd_mode_data *data; 1941 1942 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1943 ("trying to do CDIOCPLAYBLOCKS\n")); 1944 1945 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 1946 M_WAITOK); 1947 1948 error = cdgetmode(periph, data, AUDIO_PAGE); 1949 if (error) { 1950 free(data, M_TEMP); 1951 break; 1952 } 1953 data->page.audio.flags &= ~CD_PA_SOTC; 1954 data->page.audio.flags |= CD_PA_IMMED; 1955 error = cdsetmode(periph, data); 1956 free(data, M_TEMP); 1957 if (error) 1958 break; 1959 error = cdplay(periph, args->blk, args->len); 1960 } 1961 break; 1962 case CDIOCREADSUBCHANNEL: 1963 { 1964 struct ioc_read_subchannel *args 1965 = (struct ioc_read_subchannel *) addr; 1966 struct cd_sub_channel_info *data; 1967 u_int32_t len = args->data_len; 1968 1969 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 1970 ("trying to do CDIOCREADSUBCHANNEL\n")); 1971 1972 data = malloc(sizeof(struct cd_sub_channel_info), 1973 M_TEMP, M_WAITOK); 1974 1975 if ((len > sizeof(struct cd_sub_channel_info)) || 1976 (len < sizeof(struct cd_sub_channel_header))) { 1977 printf( 1978 "scsi_cd: cdioctl: " 1979 "cdioreadsubchannel: error, len=%d\n", 1980 len); 1981 error = EINVAL; 1982 free(data, M_TEMP); 1983 break; 1984 } 1985 1986 if (softc->quirks & CD_Q_BCD_TRACKS) 1987 args->track = bin2bcd(args->track); 1988 1989 error = cdreadsubchannel(periph, args->address_format, 1990 args->data_format, args->track, data, len); 1991 1992 if (error) { 1993 free(data, M_TEMP); 1994 break; 1995 } 1996 if (softc->quirks & CD_Q_BCD_TRACKS) 1997 data->what.track_info.track_number = 1998 bcd2bin(data->what.track_info.track_number); 1999 len = min(len, ((data->header.data_len[0] << 8) + 2000 data->header.data_len[1] + 2001 sizeof(struct cd_sub_channel_header))); 2002 if (copyout(data, args->data, len) != 0) { 2003 error = EFAULT; 2004 } 2005 free(data, M_TEMP); 2006 } 2007 break; 2008 2009 case CDIOREADTOCHEADER: 2010 { 2011 struct ioc_toc_header *th; 2012 2013 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2014 ("trying to do CDIOREADTOCHEADER\n")); 2015 2016 th = malloc(sizeof(struct ioc_toc_header), M_TEMP, 2017 M_WAITOK); 2018 error = cdreadtoc(periph, 0, 0, 2019 (struct cd_toc_entry *)th, 2020 sizeof (*th)); 2021 if (error) { 2022 free(th, M_TEMP); 2023 break; 2024 } 2025 if (softc->quirks & CD_Q_BCD_TRACKS) { 2026 /* we are going to have to convert the BCD 2027 * encoding on the cd to what is expected 2028 */ 2029 th->starting_track = 2030 bcd2bin(th->starting_track); 2031 th->ending_track = bcd2bin(th->ending_track); 2032 } 2033 NTOHS(th->len); 2034 bcopy(th, addr, sizeof(*th)); 2035 free(th, M_TEMP); 2036 } 2037 break; 2038 case CDIOREADTOCENTRYS: 2039 { 2040 typedef struct { 2041 struct ioc_toc_header header; 2042 struct cd_toc_entry entries[100]; 2043 } data_t; 2044 typedef struct { 2045 struct ioc_toc_header header; 2046 struct cd_toc_entry entry; 2047 } lead_t; 2048 2049 data_t *data; 2050 lead_t *lead; 2051 struct ioc_read_toc_entry *te = 2052 (struct ioc_read_toc_entry *) addr; 2053 struct ioc_toc_header *th; 2054 u_int32_t len, readlen, idx, num; 2055 u_int32_t starting_track = te->starting_track; 2056 2057 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2058 ("trying to do CDIOREADTOCENTRYS\n")); 2059 2060 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2061 lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK); 2062 2063 if (te->data_len < sizeof(struct cd_toc_entry) 2064 || (te->data_len % sizeof(struct cd_toc_entry)) != 0 2065 || (te->address_format != CD_MSF_FORMAT 2066 && te->address_format != CD_LBA_FORMAT)) { 2067 error = EINVAL; 2068 printf("scsi_cd: error in readtocentries, " 2069 "returning EINVAL\n"); 2070 free(data, M_TEMP); 2071 free(lead, M_TEMP); 2072 break; 2073 } 2074 2075 th = &data->header; 2076 error = cdreadtoc(periph, 0, 0, 2077 (struct cd_toc_entry *)th, 2078 sizeof (*th)); 2079 if (error) { 2080 free(data, M_TEMP); 2081 free(lead, M_TEMP); 2082 break; 2083 } 2084 2085 if (softc->quirks & CD_Q_BCD_TRACKS) { 2086 /* we are going to have to convert the BCD 2087 * encoding on the cd to what is expected 2088 */ 2089 th->starting_track = 2090 bcd2bin(th->starting_track); 2091 th->ending_track = bcd2bin(th->ending_track); 2092 } 2093 2094 if (starting_track == 0) 2095 starting_track = th->starting_track; 2096 else if (starting_track == LEADOUT) 2097 starting_track = th->ending_track + 1; 2098 else if (starting_track < th->starting_track || 2099 starting_track > th->ending_track + 1) { 2100 printf("scsi_cd: error in readtocentries, " 2101 "returning EINVAL\n"); 2102 free(data, M_TEMP); 2103 free(lead, M_TEMP); 2104 error = EINVAL; 2105 break; 2106 } 2107 2108 /* calculate reading length without leadout entry */ 2109 readlen = (th->ending_track - starting_track + 1) * 2110 sizeof(struct cd_toc_entry); 2111 2112 /* and with leadout entry */ 2113 len = readlen + sizeof(struct cd_toc_entry); 2114 if (te->data_len < len) { 2115 len = te->data_len; 2116 if (readlen > len) 2117 readlen = len; 2118 } 2119 if (len > sizeof(data->entries)) { 2120 printf("scsi_cd: error in readtocentries, " 2121 "returning EINVAL\n"); 2122 error = EINVAL; 2123 free(data, M_TEMP); 2124 free(lead, M_TEMP); 2125 break; 2126 } 2127 num = len / sizeof(struct cd_toc_entry); 2128 2129 if (readlen > 0) { 2130 error = cdreadtoc(periph, te->address_format, 2131 starting_track, 2132 (struct cd_toc_entry *)data, 2133 readlen + sizeof (*th)); 2134 if (error) { 2135 free(data, M_TEMP); 2136 free(lead, M_TEMP); 2137 break; 2138 } 2139 } 2140 2141 /* make leadout entry if needed */ 2142 idx = starting_track + num - 1; 2143 if (softc->quirks & CD_Q_BCD_TRACKS) 2144 th->ending_track = bcd2bin(th->ending_track); 2145 if (idx == th->ending_track + 1) { 2146 error = cdreadtoc(periph, te->address_format, 2147 LEADOUT, 2148 (struct cd_toc_entry *)lead, 2149 sizeof(*lead)); 2150 if (error) { 2151 free(data, M_TEMP); 2152 free(lead, M_TEMP); 2153 break; 2154 } 2155 data->entries[idx - starting_track] = 2156 lead->entry; 2157 } 2158 if (softc->quirks & CD_Q_BCD_TRACKS) { 2159 for (idx = 0; idx < num - 1; idx++) { 2160 data->entries[idx].track = 2161 bcd2bin(data->entries[idx].track); 2162 } 2163 } 2164 2165 error = copyout(data->entries, te->data, len); 2166 free(data, M_TEMP); 2167 free(lead, M_TEMP); 2168 } 2169 break; 2170 case CDIOREADTOCENTRY: 2171 { 2172 /* yeah yeah, this is ugly */ 2173 typedef struct { 2174 struct ioc_toc_header header; 2175 struct cd_toc_entry entry; 2176 } data_t; 2177 2178 data_t *data; 2179 struct ioc_read_toc_single_entry *te = 2180 (struct ioc_read_toc_single_entry *) addr; 2181 struct ioc_toc_header *th; 2182 u_int32_t track; 2183 2184 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2185 ("trying to do CDIOREADTOCENTRY\n")); 2186 2187 data = malloc(sizeof(data_t), M_TEMP, M_WAITOK); 2188 2189 if (te->address_format != CD_MSF_FORMAT 2190 && te->address_format != CD_LBA_FORMAT) { 2191 printf("error in readtocentry, " 2192 " returning EINVAL\n"); 2193 free(data, M_TEMP); 2194 error = EINVAL; 2195 break; 2196 } 2197 2198 th = &data->header; 2199 error = cdreadtoc(periph, 0, 0, 2200 (struct cd_toc_entry *)th, 2201 sizeof (*th)); 2202 if (error) { 2203 free(data, M_TEMP); 2204 break; 2205 } 2206 2207 if (softc->quirks & CD_Q_BCD_TRACKS) { 2208 /* we are going to have to convert the BCD 2209 * encoding on the cd to what is expected 2210 */ 2211 th->starting_track = 2212 bcd2bin(th->starting_track); 2213 th->ending_track = bcd2bin(th->ending_track); 2214 } 2215 track = te->track; 2216 if (track == 0) 2217 track = th->starting_track; 2218 else if (track == LEADOUT) 2219 /* OK */; 2220 else if (track < th->starting_track || 2221 track > th->ending_track + 1) { 2222 printf("error in readtocentry, " 2223 " returning EINVAL\n"); 2224 free(data, M_TEMP); 2225 error = EINVAL; 2226 break; 2227 } 2228 2229 error = cdreadtoc(periph, te->address_format, track, 2230 (struct cd_toc_entry *)data, 2231 sizeof(data_t)); 2232 if (error) { 2233 free(data, M_TEMP); 2234 break; 2235 } 2236 2237 if (softc->quirks & CD_Q_BCD_TRACKS) 2238 data->entry.track = bcd2bin(data->entry.track); 2239 bcopy(&data->entry, &te->entry, 2240 sizeof(struct cd_toc_entry)); 2241 free(data, M_TEMP); 2242 } 2243 break; 2244 case CDIOCSETPATCH: 2245 { 2246 struct ioc_patch *arg = (struct ioc_patch *) addr; 2247 struct cd_mode_data *data; 2248 2249 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2250 ("trying to do CDIOCSETPATCH\n")); 2251 2252 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2253 M_WAITOK); 2254 error = cdgetmode(periph, data, AUDIO_PAGE); 2255 if (error) { 2256 free(data, M_TEMP); 2257 break; 2258 } 2259 data->page.audio.port[LEFT_PORT].channels = 2260 arg->patch[0]; 2261 data->page.audio.port[RIGHT_PORT].channels = 2262 arg->patch[1]; 2263 data->page.audio.port[2].channels = arg->patch[2]; 2264 data->page.audio.port[3].channels = arg->patch[3]; 2265 error = cdsetmode(periph, data); 2266 free(data, M_TEMP); 2267 } 2268 break; 2269 case CDIOCGETVOL: 2270 { 2271 struct ioc_vol *arg = (struct ioc_vol *) addr; 2272 struct cd_mode_data *data; 2273 2274 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2275 ("trying to do CDIOCGETVOL\n")); 2276 2277 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2278 M_WAITOK); 2279 error = cdgetmode(periph, data, AUDIO_PAGE); 2280 if (error) { 2281 free(data, M_TEMP); 2282 break; 2283 } 2284 arg->vol[LEFT_PORT] = 2285 data->page.audio.port[LEFT_PORT].volume; 2286 arg->vol[RIGHT_PORT] = 2287 data->page.audio.port[RIGHT_PORT].volume; 2288 arg->vol[2] = data->page.audio.port[2].volume; 2289 arg->vol[3] = data->page.audio.port[3].volume; 2290 free(data, M_TEMP); 2291 } 2292 break; 2293 case CDIOCSETVOL: 2294 { 2295 struct ioc_vol *arg = (struct ioc_vol *) addr; 2296 struct cd_mode_data *data; 2297 2298 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2299 ("trying to do CDIOCSETVOL\n")); 2300 2301 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2302 M_WAITOK); 2303 error = cdgetmode(periph, data, AUDIO_PAGE); 2304 if (error) { 2305 free(data, M_TEMP); 2306 break; 2307 } 2308 data->page.audio.port[LEFT_PORT].channels = CHANNEL_0; 2309 data->page.audio.port[LEFT_PORT].volume = 2310 arg->vol[LEFT_PORT]; 2311 data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1; 2312 data->page.audio.port[RIGHT_PORT].volume = 2313 arg->vol[RIGHT_PORT]; 2314 data->page.audio.port[2].volume = arg->vol[2]; 2315 data->page.audio.port[3].volume = arg->vol[3]; 2316 error = cdsetmode(periph, data); 2317 free(data, M_TEMP); 2318 } 2319 break; 2320 case CDIOCSETMONO: 2321 { 2322 struct cd_mode_data *data; 2323 2324 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2325 ("trying to do CDIOCSETMONO\n")); 2326 2327 data = malloc(sizeof(struct cd_mode_data), 2328 M_TEMP, M_WAITOK); 2329 error = cdgetmode(periph, data, AUDIO_PAGE); 2330 if (error) { 2331 free(data, M_TEMP); 2332 break; 2333 } 2334 data->page.audio.port[LEFT_PORT].channels = 2335 LEFT_CHANNEL | RIGHT_CHANNEL; 2336 data->page.audio.port[RIGHT_PORT].channels = 2337 LEFT_CHANNEL | RIGHT_CHANNEL; 2338 data->page.audio.port[2].channels = 0; 2339 data->page.audio.port[3].channels = 0; 2340 error = cdsetmode(periph, data); 2341 free(data, M_TEMP); 2342 } 2343 break; 2344 case CDIOCSETSTEREO: 2345 { 2346 struct cd_mode_data *data; 2347 2348 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2349 ("trying to do CDIOCSETSTEREO\n")); 2350 2351 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2352 M_WAITOK); 2353 error = cdgetmode(periph, data, AUDIO_PAGE); 2354 if (error) { 2355 free(data, M_TEMP); 2356 break; 2357 } 2358 data->page.audio.port[LEFT_PORT].channels = 2359 LEFT_CHANNEL; 2360 data->page.audio.port[RIGHT_PORT].channels = 2361 RIGHT_CHANNEL; 2362 data->page.audio.port[2].channels = 0; 2363 data->page.audio.port[3].channels = 0; 2364 error = cdsetmode(periph, data); 2365 free(data, M_TEMP); 2366 } 2367 break; 2368 case CDIOCSETMUTE: 2369 { 2370 struct cd_mode_data *data; 2371 2372 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2373 ("trying to do CDIOCSETMUTE\n")); 2374 2375 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2376 M_WAITOK); 2377 error = cdgetmode(periph, data, AUDIO_PAGE); 2378 if (error) { 2379 free(data, M_TEMP); 2380 break; 2381 } 2382 data->page.audio.port[LEFT_PORT].channels = 0; 2383 data->page.audio.port[RIGHT_PORT].channels = 0; 2384 data->page.audio.port[2].channels = 0; 2385 data->page.audio.port[3].channels = 0; 2386 error = cdsetmode(periph, data); 2387 free(data, M_TEMP); 2388 } 2389 break; 2390 case CDIOCSETLEFT: 2391 { 2392 struct cd_mode_data *data; 2393 2394 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2395 ("trying to do CDIOCSETLEFT\n")); 2396 2397 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2398 M_WAITOK); 2399 error = cdgetmode(periph, data, AUDIO_PAGE); 2400 if (error) { 2401 free(data, M_TEMP); 2402 break; 2403 } 2404 data->page.audio.port[LEFT_PORT].channels = 2405 LEFT_CHANNEL; 2406 data->page.audio.port[RIGHT_PORT].channels = 2407 LEFT_CHANNEL; 2408 data->page.audio.port[2].channels = 0; 2409 data->page.audio.port[3].channels = 0; 2410 error = cdsetmode(periph, data); 2411 free(data, M_TEMP); 2412 } 2413 break; 2414 case CDIOCSETRIGHT: 2415 { 2416 struct cd_mode_data *data; 2417 2418 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE, 2419 ("trying to do CDIOCSETRIGHT\n")); 2420 2421 data = malloc(sizeof(struct cd_mode_data), M_TEMP, 2422 M_WAITOK); 2423 error = cdgetmode(periph, data, AUDIO_PAGE); 2424 if (error) { 2425 free(data, M_TEMP); 2426 break; 2427 } 2428 data->page.audio.port[LEFT_PORT].channels = 2429 RIGHT_CHANNEL; 2430 data->page.audio.port[RIGHT_PORT].channels = 2431 RIGHT_CHANNEL; 2432 data->page.audio.port[2].channels = 0; 2433 data->page.audio.port[3].channels = 0; 2434 error = cdsetmode(periph, data); 2435 free(data, M_TEMP); 2436 } 2437 break; 2438 case CDIOCRESUME: 2439 error = cdpause(periph, 1); 2440 break; 2441 case CDIOCPAUSE: 2442 error = cdpause(periph, 0); 2443 break; 2444 case CDIOCSTART: 2445 error = cdstartunit(periph); 2446 break; 2447 case CDIOCSTOP: 2448 error = cdstopunit(periph, 0); 2449 break; 2450 case CDIOCEJECT: 2451 error = cdstopunit(periph, 1); 2452 break; 2453 case CDIOCALLOW: 2454 cdprevent(periph, PR_ALLOW); 2455 break; 2456 case CDIOCPREVENT: 2457 cdprevent(periph, PR_PREVENT); 2458 break; 2459 case CDIOCSETDEBUG: 2460 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */ 2461 error = ENOTTY; 2462 break; 2463 case CDIOCCLRDEBUG: 2464 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */ 2465 error = ENOTTY; 2466 break; 2467 case CDIOCRESET: 2468 /* return (cd_reset(periph)); */ 2469 error = ENOTTY; 2470 break; 2471 default: 2472 if (cmd == DIOCSBAD) { 2473 error = EINVAL; /* XXX */ 2474 break; 2475 } 2476 2477 /* 2478 * Check to see whether we've got a disk-type ioctl. If we 2479 * don't, dsioctl will pass back an error code of ENOIOCTL. 2480 */ 2481 error = dsioctl("cd", dev, cmd, addr, flag, &softc->cd_slices, 2482 cdstrategy1, (ds_setgeom_t *)NULL); 2483 2484 if (error != ENOIOCTL) 2485 break; 2486 2487 error = cam_periph_ioctl(periph, cmd, addr, cderror); 2488 break; 2489 } 2490 2491 cam_periph_unlock(periph); 2492 2493 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n")); 2494 2495 return (error); 2496} 2497 2498static void 2499cdprevent(struct cam_periph *periph, int action) 2500{ 2501 union ccb *ccb; 2502 struct cd_softc *softc; 2503 int error; 2504 2505 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n")); 2506 2507 softc = (struct cd_softc *)periph->softc; 2508 2509 if (((action == PR_ALLOW) 2510 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0) 2511 || ((action == PR_PREVENT) 2512 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) { 2513 return; 2514 } 2515 2516 ccb = cdgetccb(periph, /* priority */ 1); 2517 2518 scsi_prevent(&ccb->csio, 2519 /*retries*/ 1, 2520 cddone, 2521 MSG_SIMPLE_Q_TAG, 2522 action, 2523 SSD_FULL_SIZE, 2524 /* timeout */60000); 2525 2526 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2527 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2528 2529 xpt_release_ccb(ccb); 2530 2531 if (error == 0) { 2532 if (action == PR_ALLOW) 2533 softc->flags &= ~CD_FLAG_DISC_LOCKED; 2534 else 2535 softc->flags |= CD_FLAG_DISC_LOCKED; 2536 } 2537} 2538 2539static int 2540cdsize(dev_t dev, u_int32_t *size) 2541{ 2542 struct cam_periph *periph; 2543 struct cd_softc *softc; 2544 union ccb *ccb; 2545 struct scsi_read_capacity_data *rcap_buf; 2546 int error; 2547 2548 periph = cam_extend_get(cdperiphs, dkunit(dev)); 2549 2550 if (periph == NULL) 2551 return (ENXIO); 2552 2553 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n")); 2554 2555 softc = (struct cd_softc *)periph->softc; 2556 2557 ccb = cdgetccb(periph, /* priority */ 1); 2558 2559 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data), 2560 M_TEMP, M_WAITOK); 2561 2562 scsi_read_capacity(&ccb->csio, 2563 /*retries*/ 1, 2564 cddone, 2565 MSG_SIMPLE_Q_TAG, 2566 rcap_buf, 2567 SSD_FULL_SIZE, 2568 /* timeout */20000); 2569 2570 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2571 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT); 2572 2573 xpt_release_ccb(ccb); 2574 2575 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1; 2576 softc->params.blksize = scsi_4btoul(rcap_buf->length); 2577 2578 free(rcap_buf, M_TEMP); 2579 *size = softc->params.disksize; 2580 2581 return (error); 2582 2583} 2584 2585static int 2586cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2587{ 2588 struct cd_softc *softc; 2589 struct cam_periph *periph; 2590 2591 periph = xpt_path_periph(ccb->ccb_h.path); 2592 softc = (struct cd_softc *)periph->softc; 2593 2594 /* 2595 * XXX 2596 * Until we have a better way of doing pack validation, 2597 * don't treat UAs as errors. 2598 */ 2599 sense_flags |= SF_RETRY_UA; 2600 return (cam_periph_error(ccb, cam_flags, sense_flags, 2601 &softc->saved_ccb)); 2602} 2603 2604/* 2605 * Read table of contents 2606 */ 2607static int 2608cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start, 2609 struct cd_toc_entry *data, u_int32_t len) 2610{ 2611 struct scsi_read_toc *scsi_cmd; 2612 u_int32_t ntoc; 2613 struct ccb_scsiio *csio; 2614 union ccb *ccb; 2615 int error; 2616 2617 ntoc = len; 2618 error = 0; 2619 2620 ccb = cdgetccb(periph, /* priority */ 1); 2621 2622 csio = &ccb->csio; 2623 2624 cam_fill_csio(csio, 2625 /* retries */ 1, 2626 /* cbfcnp */ cddone, 2627 /* flags */ CAM_DIR_IN, 2628 /* tag_action */ MSG_SIMPLE_Q_TAG, 2629 /* data_ptr */ (u_int8_t *)data, 2630 /* dxfer_len */ len, 2631 /* sense_len */ SSD_FULL_SIZE, 2632 sizeof(struct scsi_read_toc), 2633 /* timeout */ 50000); 2634 2635 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes; 2636 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2637 2638 if (mode == CD_MSF_FORMAT) 2639 scsi_cmd->byte2 |= CD_MSF; 2640 scsi_cmd->from_track = start; 2641 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */ 2642 scsi_cmd->data_len[0] = (ntoc) >> 8; 2643 scsi_cmd->data_len[1] = (ntoc) & 0xff; 2644 2645 scsi_cmd->op_code = READ_TOC; 2646 2647 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2648 /*sense_flags*/SF_RETRY_UA); 2649 2650 xpt_release_ccb(ccb); 2651 2652 return(error); 2653} 2654 2655static int 2656cdreadsubchannel(struct cam_periph *periph, u_int32_t mode, 2657 u_int32_t format, int track, 2658 struct cd_sub_channel_info *data, u_int32_t len) 2659{ 2660 struct scsi_read_subchannel *scsi_cmd; 2661 struct ccb_scsiio *csio; 2662 union ccb *ccb; 2663 int error; 2664 2665 error = 0; 2666 2667 ccb = cdgetccb(periph, /* priority */ 1); 2668 2669 csio = &ccb->csio; 2670 2671 cam_fill_csio(csio, 2672 /* retries */ 1, 2673 /* cbfcnp */ cddone, 2674 /* flags */ CAM_DIR_IN, 2675 /* tag_action */ MSG_SIMPLE_Q_TAG, 2676 /* data_ptr */ (u_int8_t *)data, 2677 /* dxfer_len */ len, 2678 /* sense_len */ SSD_FULL_SIZE, 2679 sizeof(struct scsi_read_subchannel), 2680 /* timeout */ 50000); 2681 2682 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes; 2683 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2684 2685 scsi_cmd->op_code = READ_SUBCHANNEL; 2686 if (mode == CD_MSF_FORMAT) 2687 scsi_cmd->byte1 |= CD_MSF; 2688 scsi_cmd->byte2 = SRS_SUBQ; 2689 scsi_cmd->subchan_format = format; 2690 scsi_cmd->track = track; 2691 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len); 2692 scsi_cmd->control = 0; 2693 2694 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2695 /*sense_flags*/SF_RETRY_UA); 2696 2697 xpt_release_ccb(ccb); 2698 2699 return(error); 2700} 2701 2702 2703static int 2704cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page) 2705{ 2706 struct scsi_mode_sense_6 *scsi_cmd; 2707 struct ccb_scsiio *csio; 2708 union ccb *ccb; 2709 int error; 2710 2711 ccb = cdgetccb(periph, /* priority */ 1); 2712 2713 csio = &ccb->csio; 2714 2715 bzero(data, sizeof(*data)); 2716 cam_fill_csio(csio, 2717 /* retries */ 1, 2718 /* cbfcnp */ cddone, 2719 /* flags */ CAM_DIR_IN, 2720 /* tag_action */ MSG_SIMPLE_Q_TAG, 2721 /* data_ptr */ (u_int8_t *)data, 2722 /* dxfer_len */ sizeof(*data), 2723 /* sense_len */ SSD_FULL_SIZE, 2724 sizeof(struct scsi_mode_sense_6), 2725 /* timeout */ 50000); 2726 2727 scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes; 2728 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2729 2730 scsi_cmd->page = page; 2731 scsi_cmd->length = sizeof(*data) & 0xff; 2732 scsi_cmd->opcode = MODE_SENSE; 2733 2734 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2735 /*sense_flags*/SF_RETRY_UA); 2736 2737 xpt_release_ccb(ccb); 2738 2739 return(error); 2740} 2741 2742static int 2743cdsetmode(struct cam_periph *periph, struct cd_mode_data *data) 2744{ 2745 struct scsi_mode_select_6 *scsi_cmd; 2746 struct ccb_scsiio *csio; 2747 union ccb *ccb; 2748 int error; 2749 2750 ccb = cdgetccb(periph, /* priority */ 1); 2751 2752 csio = &ccb->csio; 2753 2754 error = 0; 2755 2756 cam_fill_csio(csio, 2757 /* retries */ 1, 2758 /* cbfcnp */ cddone, 2759 /* flags */ CAM_DIR_OUT, 2760 /* tag_action */ MSG_SIMPLE_Q_TAG, 2761 /* data_ptr */ (u_int8_t *)data, 2762 /* dxfer_len */ sizeof(*data), 2763 /* sense_len */ SSD_FULL_SIZE, 2764 sizeof(struct scsi_mode_select_6), 2765 /* timeout */ 50000); 2766 2767 scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes; 2768 2769 bzero(scsi_cmd, sizeof(*scsi_cmd)); 2770 scsi_cmd->opcode = MODE_SELECT; 2771 scsi_cmd->byte2 |= SMS_PF; 2772 scsi_cmd->length = sizeof(*data) & 0xff; 2773 data->header.data_length = 0; 2774 /* 2775 * SONY drives do not allow a mode select with a medium_type 2776 * value that has just been returned by a mode sense; use a 2777 * medium_type of 0 (Default) instead. 2778 */ 2779 data->header.medium_type = 0; 2780 2781 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2782 /*sense_flags*/SF_RETRY_UA); 2783 2784 xpt_release_ccb(ccb); 2785 2786 return(error); 2787} 2788 2789 2790static int 2791cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len) 2792{ 2793 struct ccb_scsiio *csio; 2794 union ccb *ccb; 2795 int error; 2796 u_int8_t cdb_len; 2797 2798 error = 0; 2799 ccb = cdgetccb(periph, /* priority */ 1); 2800 csio = &ccb->csio; 2801 /* 2802 * Use the smallest possible command to perform the operation. 2803 */ 2804 if ((len & 0xffff0000) == 0) { 2805 /* 2806 * We can fit in a 10 byte cdb. 2807 */ 2808 struct scsi_play_10 *scsi_cmd; 2809 2810 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes; 2811 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2812 scsi_cmd->op_code = PLAY_10; 2813 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2814 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len); 2815 cdb_len = sizeof(*scsi_cmd); 2816 } else { 2817 struct scsi_play_12 *scsi_cmd; 2818 2819 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes; 2820 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2821 scsi_cmd->op_code = PLAY_12; 2822 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr); 2823 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len); 2824 cdb_len = sizeof(*scsi_cmd); 2825 } 2826 cam_fill_csio(csio, 2827 /*retries*/2, 2828 cddone, 2829 /*flags*/CAM_DIR_NONE, 2830 MSG_SIMPLE_Q_TAG, 2831 /*dataptr*/NULL, 2832 /*datalen*/0, 2833 /*sense_len*/SSD_FULL_SIZE, 2834 cdb_len, 2835 /*timeout*/50 * 1000); 2836 2837 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2838 /*sense_flags*/SF_RETRY_UA); 2839 2840 xpt_release_ccb(ccb); 2841 2842 return(error); 2843} 2844 2845static int 2846cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts, 2847 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf) 2848{ 2849 struct scsi_play_msf *scsi_cmd; 2850 struct ccb_scsiio *csio; 2851 union ccb *ccb; 2852 int error; 2853 2854 error = 0; 2855 2856 ccb = cdgetccb(periph, /* priority */ 1); 2857 2858 csio = &ccb->csio; 2859 2860 cam_fill_csio(csio, 2861 /* retries */ 1, 2862 /* cbfcnp */ cddone, 2863 /* flags */ CAM_DIR_NONE, 2864 /* tag_action */ MSG_SIMPLE_Q_TAG, 2865 /* data_ptr */ NULL, 2866 /* dxfer_len */ 0, 2867 /* sense_len */ SSD_FULL_SIZE, 2868 sizeof(struct scsi_play_msf), 2869 /* timeout */ 50000); 2870 2871 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes; 2872 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2873 2874 scsi_cmd->op_code = PLAY_MSF; 2875 scsi_cmd->start_m = startm; 2876 scsi_cmd->start_s = starts; 2877 scsi_cmd->start_f = startf; 2878 scsi_cmd->end_m = endm; 2879 scsi_cmd->end_s = ends; 2880 scsi_cmd->end_f = endf; 2881 2882 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2883 /*sense_flags*/SF_RETRY_UA); 2884 2885 xpt_release_ccb(ccb); 2886 2887 return(error); 2888} 2889 2890 2891static int 2892cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex, 2893 u_int32_t etrack, u_int32_t eindex) 2894{ 2895 struct scsi_play_track *scsi_cmd; 2896 struct ccb_scsiio *csio; 2897 union ccb *ccb; 2898 int error; 2899 2900 error = 0; 2901 2902 ccb = cdgetccb(periph, /* priority */ 1); 2903 2904 csio = &ccb->csio; 2905 2906 cam_fill_csio(csio, 2907 /* retries */ 1, 2908 /* cbfcnp */ cddone, 2909 /* flags */ CAM_DIR_NONE, 2910 /* tag_action */ MSG_SIMPLE_Q_TAG, 2911 /* data_ptr */ NULL, 2912 /* dxfer_len */ 0, 2913 /* sense_len */ SSD_FULL_SIZE, 2914 sizeof(struct scsi_play_track), 2915 /* timeout */ 50000); 2916 2917 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes; 2918 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2919 2920 scsi_cmd->op_code = PLAY_TRACK; 2921 scsi_cmd->start_track = strack; 2922 scsi_cmd->start_index = sindex; 2923 scsi_cmd->end_track = etrack; 2924 scsi_cmd->end_index = eindex; 2925 2926 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2927 /*sense_flags*/SF_RETRY_UA); 2928 2929 xpt_release_ccb(ccb); 2930 2931 return(error); 2932} 2933 2934static int 2935cdpause(struct cam_periph *periph, u_int32_t go) 2936{ 2937 struct scsi_pause *scsi_cmd; 2938 struct ccb_scsiio *csio; 2939 union ccb *ccb; 2940 int error; 2941 2942 error = 0; 2943 2944 ccb = cdgetccb(periph, /* priority */ 1); 2945 2946 csio = &ccb->csio; 2947 2948 cam_fill_csio(csio, 2949 /* retries */ 1, 2950 /* cbfcnp */ cddone, 2951 /* flags */ CAM_DIR_NONE, 2952 /* tag_action */ MSG_SIMPLE_Q_TAG, 2953 /* data_ptr */ NULL, 2954 /* dxfer_len */ 0, 2955 /* sense_len */ SSD_FULL_SIZE, 2956 sizeof(struct scsi_pause), 2957 /* timeout */ 50000); 2958 2959 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes; 2960 bzero (scsi_cmd, sizeof(*scsi_cmd)); 2961 2962 scsi_cmd->op_code = PAUSE; 2963 scsi_cmd->resume = go; 2964 2965 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2966 /*sense_flags*/SF_RETRY_UA); 2967 2968 xpt_release_ccb(ccb); 2969 2970 return(error); 2971} 2972 2973static int 2974cdstartunit(struct cam_periph *periph) 2975{ 2976 union ccb *ccb; 2977 int error; 2978 2979 error = 0; 2980 2981 ccb = cdgetccb(periph, /* priority */ 1); 2982 2983 scsi_start_stop(&ccb->csio, 2984 /* retries */ 1, 2985 /* cbfcnp */ cddone, 2986 /* tag_action */ MSG_SIMPLE_Q_TAG, 2987 /* start */ TRUE, 2988 /* load_eject */ TRUE, 2989 /* immediate */ FALSE, 2990 /* sense_len */ SSD_FULL_SIZE, 2991 /* timeout */ 50000); 2992 2993 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 2994 /*sense_flags*/SF_RETRY_UA); 2995 2996 xpt_release_ccb(ccb); 2997 2998 return(error); 2999} 3000 3001static int 3002cdstopunit(struct cam_periph *periph, u_int32_t eject) 3003{ 3004 union ccb *ccb; 3005 int error; 3006 3007 error = 0; 3008 3009 ccb = cdgetccb(periph, /* priority */ 1); 3010 3011 scsi_start_stop(&ccb->csio, 3012 /* retries */ 1, 3013 /* cbfcnp */ cddone, 3014 /* tag_action */ MSG_SIMPLE_Q_TAG, 3015 /* start */ FALSE, 3016 /* load_eject */ eject, 3017 /* immediate */ FALSE, 3018 /* sense_len */ SSD_FULL_SIZE, 3019 /* timeout */ 50000); 3020 3021 error = cdrunccb(ccb, cderror, /*cam_flags*/0, 3022 /*sense_flags*/SF_RETRY_UA); 3023 3024 xpt_release_ccb(ccb); 3025 3026 return(error); 3027} 3028